Frigid Airmass to Bring Significantly Colder Temperatures; Heavy Lake-effect Snow; Fire Concerns Across the Central Gulf Coast

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Temperatures will tie or break many records across the Southeast through tonight. Moderate to heavy lake effect snow will continue downwind of the Great Lakes. Gusty winds and dry conditions will support an elevated fire weather threat across the Central Gulf Coast. Read More >

Current conditions at

READER RANCH (RRRC1)

Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.

NA

55°F

13°C

Humidity 64%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 10 Nov 06:13 AM PST
Extended Forecast for

Penn Valley CA

  • Today

    Today: Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely after 4pm.  Mostly cloudy, with a high near 65. Light and variable wind becoming south 5 to 7 mph in the morning.  Chance of precipitation is 60%.

    High: 65 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am.  Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 10am.  High near 53. Chance of precipitation is 90%.

    High: 53 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 10pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, mainly before 4pm.  Partly sunny, with a high near 50.

    High: 50 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 77. Calm wind.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Veterans Day
Partly sunny, with a high near 73. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 55. Calm wind.
Wednesday
Showers likely after 4pm. Mostly cloudy, with a high near 65. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%.
Wednesday Night
Showers likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Low around 49. Chance of precipitation is 90%.
Thursday
Showers, with thunderstorms also possible after 10am. High near 53. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 42.
Friday
A chance of showers, mainly before 4pm. Partly sunny, with a high near 50.
Friday Night
A slight chance of showers before 10pm. Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
A chance of showers. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Penn Valley CA
 39.21°N 121.19°W (Elev. 1401 ft)
1:20 am PST Nov 10, 2025
7am PST Nov 10, 2025-6pm PST Nov 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database